#010803

CSS

:root {
  --jedi-night: #010803;
  --jedi-night-rgb: 1 8 3;
  --jedi-night-oklch: oklch(0.12 0.025 154.6);
}

.element {
  color: var(--jedi-night);
  background-color: hsl(137 78% 2%);
  border-color: oklch(0.12 0.025 154.6);
}

Tailwind CSS v4

@theme {
  --color-jedi-night: #010803;
  --color-jedi-night-50: #f0f7f2;
  --color-jedi-night-100: #e2eae4;
  --color-jedi-night-200: #ccd8d0;
  --color-jedi-night-300: #aebbb2;
  --color-jedi-night-400: #94a398;
  --color-jedi-night-500: #7a8b7f;
  --color-jedi-night-600: #67766c;
  --color-jedi-night-700: #535e56;
  --color-jedi-night-800: #3c453e;
  --color-jedi-night-900: #29302b;
  --color-jedi-night-950: #171c18;
}

SCSS

$jedi-night: #010803;
$jedi-night-rgb: 1, 8, 3;
$jedi-night-light: mix(#fff, $jedi-night, 20%);
$jedi-night-dark: mix(#000, $jedi-night, 20%);

.element {
  color: $jedi-night;
  box-shadow: 0 0 0 2px rgba($jedi-night, 0.35);
}